beef

contending; together by the ears, at loggerheads at war at issue., competitive, rival; belligerent; contentious, combative, bellicose, unpeaceful; warlike; quarrelsome; pugnacious; pugilistic, gladiatorial; palestric, palestrical.

differing; different, diverse, heterogeneous, multifarious, polyglot; distinguishable, dissimilar; varied, modified; diversified, various, divers, all manner of, all kinds of; variform; daedal., other, another, not the same; unequal; unmatched; widely apart, poles apart, distinctive, characteristic; discriminative; distinguishing.

difficult, not easy, hard, tough; troublesome, toilsome, irksome; operose, laborious, onerous, arduous, Herculean, formidable; sooner said than done; more easily said than done., difficult to deal with, hard to deal with; ill-conditioned, crabbed; not to be handled with kid gloves, not made with rose water., awkward, unwieldy, unmanageable; intractable, stubborn (obstinate); perverse, refractory, plaguy, trying, thorny, rugged; knotted, knotty; invious; pathless, trackless; labyrinthine (convoluted); intricate, complicated (tangled); impracticable (impossible); not feasible; desperate (hopeless)., embarrassing, perplexing (uncertain); delicate, ticklish, critical; beset with difficulties, full of difficulties, surrounded by difficulties, entangled by difficulties, encompassed with difficulties.